.bc {
  background: url("../img/login-back.jpg") 0 -70px;
  background-size: 375px 900px;
  height: 900px;
  width: 375px;
  float: left;
  position: fixed;
  left: 0;
}
.all {
  margin-left: 375px;
  overflow: auto;
  height: auto;
}
.all .all_c .header {
  padding: 20px;
  height: 80px;
}
.all .all_c .header .header_t {
  float: left;
}
.all .all_c .header .header_t .logo {
  width: 40px;
  height: 40px;
  position: relative;
  margin-right: 10px;
}
.all .all_c .header .header_t .logo a {
  display: block;
  width: 40px;
  height: 40px;
  text-indent: -9999px;
  position: absolute;
  top: 0;
  left: 0;
  z-index: 10;
}
.all .all_c .header .header_t .logo img {
  width: 40px;
  height: 40px;
  position: absolute;
  top: 0;
  left: 0;
  z-index: 1;
}
.all .all_c .header .header_t h1 {
  float: left;
  font-size: 26px;
  font-weight: normal;
  color: #333;
  margin-top: 5px;
}
.all .all_c .header .nav {
  float: right;
}
.all .all_c .header .nav a {
  margin-left: 10px;
  margin-right: 10px;
  height: 40px;
  font-size: 14px;
  font-weight: 400;
  color: #838383;
  line-height: 40px;
}
.all .all_c .header .nav span {
  color: #838383;
  height: 40px;
  line-height: 40px;
  font-size: 14px;
}
.all .all_c .login {
  box-shadow: 0px 5px 30px #ddd;
  position: relative;
  width: 450px;
  height: 520px;
  margin: 0 auto;
  padding: 40px 45px;
}
.all .all_c .login .login_t {
  height: 40px;
}
.all .all_c .login .login_t a {
  font-size: 22px;
}
.all .all_c .login .user input,
.all .all_c .login .psd input {
  height: 60px;
  line-height: 20px;
  border: none;
  color: #333;
  background: #F9F9F9;
  width: 356px;
  font-size: 17px;
  padding: 20px 20px 10px;
  box-sizing: border-box;
  margin-bottom: 20px;
}
.all .all_c .login .btn {
  width: 356px;
  height: 60px;
  color: #fff;
  background-color: #ff5c00;
  border: none;
  font-size: 18px;
}
.all .all_c .login .zi div {
  margin-top: 12px;
}
.all .all_c .login .zi a {
  color: #ff5c00;
}
.all .all_c .login .zi > :nth-child(1) {
  float: left;
}
.all .all_c .login .zi > :nth-child(2) {
  float: right;
}
.all .all_c .login .other {
  position: absolute;
  bottom: 123px;
  left: 176px;
  color: #aaa;
  font-size: 17px;
}
.all .all_c .login .tu {
  border: 1px solid transparent;
  position: absolute;
  bottom: 36px;
  left: 70px;
}
.all .all_c .login .tu img {
  height: 80px;
  border: none;
}
.footer {
  margin-top: 86px;
  margin-bottom: 22px;
  font-size: 12px;
  color: #999;
  text-align: center;
}
